Dr. Murai Éva - Gubányi András szerk.: Parasitologia Hungarica 29-30. (Budapest, 1997)

The fish were mostly caught with the help of fishermen from the Balaton Fisheries Co. Ltd. or with our own electrofishery equipment from the lake-basin and in the littoral zone. The fish were always transported to the laboratory alive, in aerated cans or polyethylene bags inflated with oxygen. If sampling was performed in the summer, the water used for transporting the fish to the laboratory was cooled with ice. Fish transported to our institute were placed in flow-through type concrete basins and aquaria, and dissected as soon as possible, within a few days of catching. During the dissection, all internal organs (liver, kidney, heart, intestines, swimbladder, gallbladder), the gill filaments, the eyes, the fins and the skin were examined. In many cases when fish of large size were dissected, the parasitological findings were based upon the examination of small pieces taken from the individual organs. The examinations included dissection under stereomicroscope and light-microscopic protozoological examination. The parasite species found and the intensity of infection were recorded separately for each fish. Instead of the detailed tables, however, only a host-parasite list is presented in this paper. Upper-Reservoir Lower-Reservoir Fig. 1. Sampling sites of the fish-parasitological survey conducted in the Upper-Reservoir of the Kis-Balaton Water Protection System in 1996 RESULTS The taxonomic classification and hosts of the parasites recorded during the dissections are shown in parasite-host list. Parasite-host relationships PROTOZOA Mastigophora Kinetoplastidea TRYPANOSOMATIDAE Trypanosoma danilewskyi Laveran et Mesnil, 1904 —

Abramis brama, Carassius auratus gibelio, Cyprinus carpio Apicomplexa Coccidia EIMERIIDAE Goussia cylindrospora (Stankovitch, 1921) —Alburnus alburnus